Abstract: A device (1) controllable by a short-range point-to-point radio frequency signal, e.g. a Bluetooth signal from a mobile device (23), is configured to receive, e.g. from the mobile device and neighboring lighting devices (11-12), one or more signals which comprise the short-range point-to-point radio frequency signal, determine changes in received radio frequency signals from the one or more signals, detect presence, e.g. of a resident (51), based on the changes, determine a control command from the short-range point-to-point radio frequency signal, and execute the control command in dependence on the presence being detected.

Abstract: The invention relates to powering one or more devices, in particular in the context of Power-over-Ethernet (PoE). In an embodiment of the invention, it is proposed to equip each node (11) with a PD interface (22) that can signal multiples of the standard defined unity load (25 k? with tolerances) during the detection process and increase the load during a sequence of detection attempts. In that way, several nodes (11) can share one PSE outlet and determine the number of neighboring loads (11). At the same time, each node (11) will offer full functionality during “normal” stand-alone wiring. This powering concept can be combined with full or limited data communication capabilities.

Abstract: Provided is a lighting device including a light source for emitting light, a sensor configured to detect infrared radiation from a plurality of locations along a path in the field of view of the sensor, at least one attenuation element arranged between at least one location of the plurality of locations and the sensor so as to attenuate or block infrared radiation emitted from the at least one location before it reaches the sensor, and a controller. The at least one attenuation element is further arranged in relation to the field of view of the sensor for the signal output from the sensor to indicate, when an occupant is moving along the path, a direction of movement of the occupant along the path.

Abstract: The present invention relates to Power-over-Ethernet (PoE) systems. The invention proposes to use a classification event to communicate from the PD (121) to the PSE (110, 910). A sensor (310, 410, 510a, 510b) may determine a sensor value, shut down the PoE connection, and reconnect so that the power up cycle with the PSE (110, 910) will start. The sensor (310, 410, 510a, 510b) provides a PoE resistance related to a class 0, 3 where the class relates to the sensor value (e.g., class 0=presence detected; class 1=no presence detected). This procedure may be repeated (e.g. continuously, every minute or whenever the sensor value changes such that the PSE (110, 910) needs to be informed) and if needed multiple cycles can be used to increase the length of the message communicated.

Abstract: Provided is a lighting device including a light source for emitting light, a sensor configured to detect infrared radiation from a plurality of locations along a path in the field of view of the sensor, at least one attenuation element arranged between at least one location of the plurality of locations and the sensor so as to attenuate or block infrared radiation emitted from the at least one location before it reaches the sensor, and a controller. The at least one attenuation element is further arranged in relation to the field of view of the sensor for the signal output from the sensor to indicate, when an occupant is moving along the path, a direction of movement of the occupant along the path.

Abstract: The invention relates to powering one or more devices, in particular in the context of Power-over-Ethernet (PoE). In an embodiment of the invention, it is proposed to equip each node (11) with a PD interface (22) that can signal multiples of the standard defined unity load (25 k? with tolerances) during the detection process and increase the load during a sequence of detection attempts. In that way, several nodes (11) can share one PSE outlet and determine the number of neighboring loads (11). At the same time, each node (11) will offer full functionality during “normal” stand-alone wiring. This powering concept can be combined with full or limited data communication capabilities.

Abstract: The invention relates to powering one or more devices, in particular in the context of Power-over-Ethernet (PoE). In an embodiment of the invention, it is proposed to equip each node (11) with a PD interface (22) that can signal multiples of the standard defined unity load (25 k? with tolerances) during the detection process and increase the load during a sequence of detection attempts. In that way, several nodes (11) can share one PSE outlet and determine the number of neighboring loads (11). At the same time, each node (11) will offer full functionality during “normal” stand-alone wiring. This powering concept can be combined with full or limited data communication capabilities.

Abstract: A capacitive contactless powering system (100) comprises a pair of receiver electrodes (141, 142) connected to a load (150) through a first inductor (160), wherein the first inductor is coupled to the load to resonate the system; a pair of transmitter electrodes (121, 122) connected to a driver (110); an insulating layer (130) having a first side and a second side opposite each other, wherein the pair of transmitter electrodes are coupled to the first side of the insulating layer and the pair of receiver electrodes are decoupled from the second side of the insulating layer, such that a capacitive impedance is formed between the pair of transmitter electrodes and the pair of receiver electrodes, wherein a power signal generated by the driver is wirelessly transferred from the pair of transmitter electrodes to the pair of receiver electrodes to power the load when a frequency of the power signal matches a series-resonance frequency of the first inductor and the capacitive impedance.

Abstract: The invention relates to a PoE lighting system (1) comprising an emergency lighting device (4), a first PSE device (6) and a second PSE device (2). The first PSE device is adapted to provide power based on a) first power received from a first power source or b) second power received from a second PSE device via a first fire-resistant PoE connection (3) in case of emergency. The first PSE device is adapted to detect whether power is received from the second PSE device and to provide power to the emergency lighting device based on the second power via a second fire-resistant PoE connection (7), if it has been detected that power has been received from the second PSE device. This can allow for a provision of PoE emergency lighting in case of fire, even if a communication via the fire-resistant PoE connections is not possible anymore.

Abstract: An article of manufacture (130) for protecting a capacitive power transfer system (100) from electrical breakdowns is disclosed. The article of manufacture comprises a non-conductive layer (210) made of a first type of non-conductive material, and a protection layer (220) made of a second type of non-conductive material, wherein a breakdown voltage of the second type of non-conductive material is higher than a breakdown voltage of the first type of non-conductive material, wherein the protection layer covers only a portion of the non-conductive layer, where in the non-conductive layer and the protection layer form an insulating layer (130) of the capacitive power transfer system.

Abstract: The invention relates to a PoE lighting system (1) comprising an emergency lighting device (4), a first PSE device (6) and a second PSE device (2). The first PSE device is adapted to provide power based on a) first power received from a first power source or b) second power received from a second PSE device via a first fire-resistant PoE connection (3) in case of emergency. The first PSE device is adapted to detect whether power is received from the second PSE device and to provide power to the emergency lighting device based on the second power via a second fire-resistant PoE connection (7), if it has been detected that power has been received from the second PSE device. This can allow for a provision of PoE emergency lighting in case of fire, even if a communication via the fire-resistant PoE connections is not possible anymore.

Abstract: A power receiver device including: a pair of receiver electrodes (341, 342) for capacitively coupling with the pair of transmitter electrodes (321, 322) placed on one side of a surface; and a deformable transfer layer (371, 372) placed between each of the pair of the receiver electrodes and another side of the surface. A power signal generated by the power driver (110) is wirelessly transferred from the pair of transmitter electrodes (321, 322) to the pair of receiver electrodes (341, 342) to power a load (150) in the power receiver device.

Abstract: An article of manufacture for supplying a power to a load connected in a capacitive power transfer system comprises a sheet (210) of a non-conductive material; and a plurality of conductive stripes (220), each two adjacent conductive stripes being electrically insulated from each other, wherein the sheet forms an insulating layer of the capacitive power transfer system and the plurality of conductive stripes form at least a pair of transmitter electrodes of the capacitive power transfer system.

Abstract: Various receiver electrodes for supplying power to a load connected in a capacitive power transfer system are disclosed. In one embodiment, the receiver electrodes include a first conductive plate connected to a first sphere-shaped hinge, wherein the first sphere-shaped hinge is coupled to a first receiver electrode; and a second conductive plate connected to a second sphere-shaped hinge, wherein the second sphere-shaped hinge is coupled to a second receiver electrode, the second receiver electrode being connected to an inductor of the capacitive power transfer system and the first receiver electrode being connected to the load, the inductor being connected to the load to resonate the capacitive power transfer system.

Abstract: The invention relates to powering one or more devices, in particular in the context of Power-over-Ethernet (PoE). In an embodiment of the invention, it is proposed to equip each node (11) with a PD interface (22) that can signal multiples of the standard defined unity load (25 k? with tolerances) during the detection process and increase the load during a sequence of detection attempts. In that way, several nodes (11) can share one PSE outlet and determine the number of neighboring loads (11). At the same time, each node (11) will offer full functionality during “normal” stand-alone wiring. This powering concept can be combined with full or limited data communication capabilities.

Abstract: The present invention relates to Power-over-Ethernet (PoE) systems. The invention proposes to use a classification event to communicate from the PD (121) to the PSE (110, 910). A sensor (310, 410, 510a, 510b) may determine a sensor value, shut down the PoE connection, and reconnect so that the power up cycle with the PSE (110, 910) will start. The sensor (310, 410, 510a, 510b) provides a PoE resistance related to a class 0, 3 where the class relates to the sensor value (e.g., class 0=presence detected; class 1=no presence detected). This procedure may be repeated (e.g. continuously, every minute or whenever the sensor value changes such that the PSE (110, 910) needs to be informed) and if needed multiple cycles can be used to increase the length of the message communicated.

Abstract: Various receiver electrodes for supplying power to a load connected in a capacitive power transfer system are disclosed. In one embodiment, the receiver electrodes include a first conductive plate (212) connected to a first sphere-shaped hinge (211), wherein the first sphere-shaped hinge is coupled to a first receiver electrode (210); and a second conductive plate (222) connected to a second sphere-shaped hinge (221), wherein the second sphere-shaped hinge is coupled to a second receiver electrode (220), the second receiver electrode being connected to an inductor of the capacitive power transfer system and the first receiver electrode being connected to the load, the inductor being connected to the load to resonate the capacitive power transfer system.

Abstract: A direct current (DC) to alternating current (AC) wireless converter apparatus (200) for supplying power to a load connected in a capacitive power transfer system. The apparatus comprises at least two connectors (201, 202) enabling a galvanic contact to at least two supply lines (211, 212) of a DC grid; a driver (203) coupled to the connectors (201, 202) and configured to generate an AC power signal from an input DC signal fed by the at least two connectors, wherein a frequency of the AC power signal substantially matches a series-resonance frequency of the capacitive power transfer system; and at least a pair of transmitter electrodes (204, 205) connected to an output of the driver.

Abstract: An apparatus (300) for supplying power to a load in a capacitive power transfer system comprises a power generator (350) operating at a first frequency; a transmitter comprising a plurality of first electrodes (310) connected to a first terminal of the power generator (350) and a plurality of second electrodes (320) connected to a second terminal of the power generator (350) of a transmitter portion of the apparatus (300); and a plurality of inductors (340), wherein each inductor of the plurality of inductors is connected between a pair of a first electrode and a second electrode of the plurality of first and second electrodes, wherein each inductor comprises, together with a parasitic capacitor (330) formed between each pair of the first electrode and the second electrode, a resonant circuit at the first frequency in order to compensate for current loss due to parasitic capacitances.

Abstract: The present invention relates to a powered device (331a, 331b, 531a) with two interfacing connections. The powered device (331a, 331b, 531a) comprises power switching units (350a, 350b, 550a1, 550a2) for forwarding the data signal as well the power received on the input to the output. Forwarding may be based on a detection of the powering state of the PD. In another embodiment, the Power-over-Ethernet input/output ports function bi-directionally, thereby allowing the user to daisy-chain devices in any direction. As power switching units, relays or solid-state power switches may be used.